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bug#16377: Undo Tree regression: (error "Unrecognized entry in undo list
bug#16377: Undo Tree regression: (error "Unrecognized entry in undo list undo-tree-canary")
Tue, 21 Jan 2014 19:05:38 -0500
> The "Unrecognised entry" error suggests the undo-tree-canary symbol
> has somehow ended up in a `buffer-undo-tree' entry.
You mean "buffer-undo-list" not "buffer-undo-tree" right?
I checked Emacs 24.3 and as I suspected it's quite easy to make
undo-tree-canary appear in the buffer-undo-list. What changed is the
error checking in core Emacs. If you expected that undo-tree-canary
would never be there between commands, that has not been so for some
Could you tell me more about the purpose of undo-tree-canary?